Z-scan investigation to evaluate the third-order nonlinear optical properties of cauliflower-like VS2 structures

被引：13
|
作者：
Parishani, Marziyeh [1 ]
Nadafan, Marzieh [2 ]
Malekfar, Rasoul [1 ]
机构：
[1] Tarbiat Modares Univ, Fac Basic Sci, Dept Phys, Tehran, Iran
[2] Shahid Rajaee Teacher Training Univ, Fac Sci, Dept Phys, Tehran, Iran
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2021年 / 38卷 / 05期
关键词：
ULTRAFAST SATURABLE ABSORPTION; MOS2; NANOSHEETS; MONOLAYER MOS2; BROAD-BAND; WS2; DISULFIDE; ABSORBER;
D O I：
10.1364/JOSAB.418182
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
VS2 was prepared via the hydrothermal method and changing the reaction time and employing surfactant. The microstructural characterizations show the control of sheet dimensions and growth of crystal planes. The Z-scan study demonstrates the positive nonlinear n(2) due to the self-focusing effect and the two-photon absorption for nonlinear absorption. These results imply the effect of lateral dimensions of sheets in cauliflower-like structures on nonlinear optical responses. Also, the nonlinear optical susceptibility chi((3)) is as high as 10(-10) (esu). This study shows that the VS2 flower-like structure and its similar nanostructures are promising materials for nonlinear optical applications and further considerations. (C) 2021 Optical Society of America
引用
收藏
页码：1586 / 1592
页数：7
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